President Obama and Mrs. O at the White House.

The First Lady is a vision in white. Photo: Tim Sloan, AFP/Getty Images

Michelle Obama may be gracing the covers of fashion mags clad in Jason Wu, but the that doesn't mean Mrs. O has abandoned the mass brands she's become famous for wearing.

Last night, the First Lady (and President Obama) hosted an evening of classical music at the White House, where she donned an equally classic dress.

Her winter white double-faced wool sheath with sweetheart neckline is from retailer Talbots, proving once again that she knows how to pull off the high-low thing seamlessly.

The trendsetter topped off the simple dress with gold bangles and black heels, creating one chic (and affordable) ensemble.

With the President in a conservative black suit and red tie, the power couple looked effortlessly stylish.

To see more of Michelle Obama's looks, browse the below gallery.

Since landing in the White House, the First Lady's fashion choices have fueled much fashion debate. See what one ad exec did in response to the public's insatiable interest.